What did you build today (Pictures) ?

[tbowmo]

@chisight

Have you seen this thread: https://forum.mysensors.org/topic/9296/node-red-contrib-mysensors-release-thread ?

Basically these set of nodes includes a controller node, that handles mysensors ID assignments, and a couple of other basic controller features.

[chisight]

@tbowmo I had seen that thread. After importing your https://github.com/tbowmo/nodered-mysensors-flow, I think this is probably quite different from my approach, I've kept it all as flows without writing any new node types or adding dependencies beyond what is installed in Raspbian by default. At some point I'll get around to documenting and posting what I've done in NodeRed too, it's a pretty simple but surprisingly powerful tool.

[chisight]

My Node Red controller is closer to what FotoFieber did a couple years back but it's for 2.3.0 and MQTT. His project is at https://forum.mysensors.org/topic/700/node-red-as-controller/28 as well as various updates over time. It was good to see @FotoFieber's code as it showed me a few holes in what I've done so far.

[tbowmo]

@chisight

Well, node-red is powerful and you can do things without creating any new node-red nodes, but it makes life a lot easier (for me) when you can just pick an item from the palette, and hey-presto you have decoded the (serial/mqtt) mysensors message. Or pick another one, and you have a controller added, that can respond to ID requests.

Btw. the the github repository that you link to, was a bit outdated.. :) A lot of things have happened since I pushed last time.. (just pushed current node-red flow for reference)

[rozpruwacz]

So I finally finished my motion sensor project and it works :)
It will be published on OpenHardware.io soon :)

[rozpruwacz]

And also finished my toolkit library for MySensors for faster code developement (https://github.com/mczerski/MySensorsToolkit). Example projects (https://github.com/mczerski/MyMultiSensor).

[Yveaux]

@rozpruwacz nice & small motion sensor, good work!
Where did you get the swivel to mount it to the wall?

[rozpruwacz]

@Yveaux I get it from the polish suplier (https://hurtowniaimport.pl/291-bb1-uchwyt-magnetyczny-samochodowy-do-telefonu-gps.html) but if you google for "magnetic phone holder 360" You wil get similar mounts.

[rozpruwacz]

I found one on aliexpress: https://pl.aliexpress.com/item/GETIHU-360-Car-Magnetic-Phone-Holder-For-Phone-in-Car-Mount-Magnet-Universial-Mobile-Cell-Phone/32879720933.html?spm=a2g17.search0104.3.244.101611774LZhtS&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10151_10065_10344_10068_10342_10343_10340_10341_10696_10084_10083_10618_10304_10307_10820_10821_10301_10843_10059_100031_10103_10624_10623_10622_10621_10620,searchweb201603_1,ppcSwitch_2&algo_expid=17a12b56-7a20-49df-aab1-45b5519746f0-29&algo_pvid=17a12b56-7a20-49df-aab1-45b5519746f0&priceBeautifyAB=0

[mfalkvidd]

Today I soldered the Velleman EDU09 oscilloscope kit. The kit is quite cheap (~50 EUR in local store). The specs aren't impressive (max 200kHz and min 100mV/division) but hopefully it can help me learn how to use a scope before I buy a real one.

[tbowmo]

Not at all mysensors related, but I have been busy building a bartop mame cabinet the last week or so.. Still mis a couple of details, but it is in a "playable" state right now.

The setup is using an old 19" lcd monitor that I had in surplus with a RPI-3B on the back, a couple of cheap Chinese arcade controllers, a partly homebuild audio hat for the rpi (adafruit i2s 3W amplifiers), and a switchmode capable of 5V @8A (if I remember right), and 12V @3A. So I have power for the marque lighting as well..

Only game available right now is Bubble Bobble, and the kids loves it (as seen in the video linked to below).

https://youtu.be/h_6FebqefcQ

[bjacobse]

@tbowmo
Quite impressive arcade game

[NeverDie]

For this project box that I'm making (actually printing it as I type this), I found an easy way to add ventilation: use a hex infill and turn off the upper and bottom layers.

As you can see, it can still have standoffs for screwing down a PCB and for securing a lid.

[NeverDie]

Here's the finished unit:

What it does is completely eliminate the audible PWM noise from the fan on the Prusa I3 MK3. Now it can run practically silent. :)

[alexsh1]

@mfalkvidd Just a tip. You may be better of buying this one:

https://www.amazon.co.uk/KKmoon-Portable-Digital-Oscilloscope-Interface/dp/B07C4RTXF6/ref=sr_1_3?ie=UTF8&qid=1534094879&sr=8-3&keywords=oscilloscope+portable

Much better spec and the price is the same. AND you can save tons of time as it does not require soldering.

[alexsh1]

@tbowmo Now I want to build one :-)))

[mfalkvidd]

@alexsh1 thanks for the tip. I guess I'll have a hard time getting my money and time back now that the kit is soldered, but it might be interesting for someone else.

[tbowmo]

@alexsh1

I used this as a base for my own build: https://www.instructables.com/id/2-Player-Bartop-Arcade-Machine-Powered-by-Pi/

[kalina]

LED backlight for my CNC machine....

[mfalkvidd]

Today I've been trying to get a MS5803_05BA sensor working. This is a pressure sensor that is commonly used in dive computers.

The sensor is tiny and handles 0-5 bar. So far I've not been able to communicate with it though. I use i2c and have tried two libraries, but none of them work (or maybe I killed the sensor when I soldered the cable).